Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] As a highly computational humanities and social sciences discipline, information science has the characteristics of data science. Big data related technology can provide an effective means for information science. Therefore, establishing the information science oriented "Data Science and Big Data Technology" discipline that aims at training inter-disciplinary talents can promote the development of information science, and these talents have big data thinking and solid information science professional basis, mastering big data processing technology and analytical theory applied to the theory and practice of information science.[Method/process] We investigated the training objectives and curriculum model of big data related majors at home and abroad, summarized the development characteristics of subject education, and combined the teaching resources of domestic to design a training plan for big data professionals with information science orientation.[Result/conclusion] There are both connections and differences between information science and big data. Information science provides basic research methods for big data, promotes the fusion of multiple source data, and broadens the application fields of big data. Big data provides more possibilities for information science research, enriches research methods, improves research efficiency, and expands the scope of research. There are both necessity and irreplaceability of the talent training of information science oriented "data science and big data technology" discipline. It will fill the gap in this professional education in China. It is necessary to further reform and innovate the disciplinary system, and to establish more emerging courses that closely integrate big data and information science, such as literature big data analysis and user big data research, so as to systematically cultivate students' ability to integrate knowledge in the field of information science with computer technology and big data technology.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《中国腐蚀与防护学报》
Abstract： The influence of steam on the corrosion behavior of 439 stainless steel for automotive mufflers was studied by means of cyclic hot air oxidation-immersion in condensate test and cyclic hot air oxidation-immersion in condensate-exposure to steam test as well as electrochemical measurements, SEM, XRD and pitting depth analyses. The results show that all the specimens, after cyclic hot air oxidation-immersion in condensate test and then with and without subsequent exposure to steam test, suffered from pitting corrosion with similar corrosion products. However, the specimens show lower corrosion resistance and deeper corrosion pits when they had experienced the exposure to steam test rather than those only experienced the cyclic hot air oxidation-immersion in condensate test. The exposure to steam may facilitate the growth of corrosion products and pits.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《中国腐蚀与防护学报》
Abstract： One oxidation-condensate immersion cyclic method was used to simulate muffler internal service environment under the long-distance driving conditions. The corrosion behavior of type 409, 429, 436, 439 and 441 stainless steels was investigated in the condensate solutions. The results show that the oxidation/corrosion product films on the surfaces of these five steels are mainly composed of Cr2O3 and Fe2O3. The alloying elements Cr and Mo play the most important role in the resistance of product films and charge transfer processes on steel surfaces. Pit depth decreases in order of 409, 439, 441, 429 and 436, but there is small depth difference between 439 and 441 as well as 429 and 436. Moreover, these five stainless steels show good pit resistance in the simulated processes of long-distance driving trips.
Subjects: Nursing >> Nursing submitted time 2022-08-17
Abstract： Enhancement of perioperative nursing plays an important role in helping the recovery of elderly patients undergoing surgery for lung cancer. This paper summarized the application of enhanced recovery after surgery (ERAS) in perioperative nursing of elderly patients undergoing surgery for lung cancer, and provided reference for quality improvement of clincal practice.
Peer Review Status:
Awaiting Review
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-12-13 Cooperative journals: 《计算机应用研究》
Abstract： Continuous object contains richer information. In order to obtain more meaningful visual information in dynamic handheld objects, targeting dynamic hand-held objects in different backgrounds. Based on the Step-size Self-learning Update SGD（SSU-SGD）, proposing three benchmarks for dynamic hand-held object recognition . Through self-learning of different step sizes, consolidating the train on the basis of known classes, unknown classes, and known objects for subsequent dynamic hand-held object recognition. Using Alexnet and VGG networks, performing the programming experiments and simulations of naive and cumulative strategies under the three different benchmarks. After experimental verification, this method can effectively improve the running speed and training accuracy and effectively improve the real-time nature of the dynamic hand-held object recognition process can be further applied to the actual.
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